This research was studied and transferred the biogas production technology with the community participation using anaerobic dry fermentation system from agricultural residues. The production of renewable energy for replacing LPG in household cooking of Koh Khan Sub-district community Cha-Uat District Nakhon Si Thammarat Province was carried out. The efficiency of the biogas production from different co-digestion material with fresh cow manure was studied for 45 days. The experiment 1 bananas and papaya and the experiment 2 rice straw and coconut meal were used for fermented materials. It was found that the system using rice straw and coconut meal as a fermented material had a higher potential than using bananas and papaya. The system produced averaged biogas of 150 L/d and an average methane content of 67.68% respectively within just 15 days after start-up. While bananas and papaya as fermented materials took more time with more than 30 days after start-up the system. The system produced averaged biogas of 120 L/d and an average methane content of 64.64%. For usability test It was found that 150 L of biogas could continuously cook for 45-60 minutes. The 85% of the technology transfer recipients regarded that the knowledge gained as practical and reduced household expenditures. Additionally the system can produce biogas for a long time without adding new fermented materials. Therefore this biogas system could be applied to local agricultural waste for biogas production which can be expanded to other areas.

This research aims to develop Thai herbal formulas for household cleaning products and reduce the use of chemicals by using kaffir lime herbs to extract essential oils by using a method of squeezing from the bark. The result is a dark green essential oil with a pleasant aroma when mixed with liquid hand soap and natural residues such as water extracted from silkworm cocoons to add moisture and lye to remove it. Reduce the use of chemical flavoring agents the use of coloring chemicals the use of moisturizing agents and the use of degreasers. In this research the formula for hand washing liquid soap using 80 ml. of essential oil from kaffir lime peel is the right amount resulting in liquid hand soap with a pH value of 7.3 which is the value that is in the standard for mixed liquid soap products. TIS 1403-2551 can inhibit the bacteria Staphylococcus aureus (S.aureus) a bacterium that can cause diarrhea in humans.

This research aimed to 1) To analyze the basic understanding and awareness of household waste separation. 2) To study the guidelines for the development of activities to raise awareness of waste separation in the household and 3) To practically benefit to raising social awareness from group activities. The sample used for this research was school students with education level lower than bachelor’s degree in Bangkok and vicinity. In-depth Interviews were used to collect data from 35 students. The research found that Attitude – According to comments from students during group activities they had the attitude towards the household waste separation at the highest level because the waste separation behavior reduces pollution and makes the environment cleaner. Personal Norm to follow all the survey questions was at a moderate level as 1) parents expected them to engage in waste separation behavior 2) friends expected them to engage in waste separation behavior and 3) friends placed importance on engaging in waste separation behavior. Perceived behavioral control to put into practice was at a high level due to 1) waste separation is easy and 2) being confident that waste can be separated on a regular basis. Intention – Students had a high level of intention to practice 1) Students were willing to separate the waste if there is an appropriate waste separation spot. 2) Students planned to separate the waste if appropriate waste separation spots are available. 3) Intended to separate their household waste on a regular basis. The results were used as a guideline for the development of activities activity development creating interest in activities. All of which were necessary to be environmentally focused and to lead to the storytelling to create continuity of activity. Recommendations – If possible the development of activities to raise awareness in the household for students and for parents should be integrated because parents have a significant influence in setting an example for target students.

Sweet tamarind is a unique and economic plant of Phetchaboon province and it has already been geographical indication (GI) registered. One of its main problems is fungal degeneration which cannot be physically visible. This causes the consumer’s uncertainty on its quality especially sweet tamarind from small communities. This led to the study on the use of household heat to reduce fungal degeneration by steaming at 100oc for 50 60 70 and 80 minutes and drying in the hot air oven at 70 oc for 3 hours. Lt was found that increasing the heat resulted in darkening the sweet tamarind color and heightening up its moisture content (p≤0.05) Drying temperature at 60 70 and 80oc revealed the higher the heat the shorter the drying time and the sweet tamarind content was darker. In addition drying significantly decreased the moisture and preference score of sweet tamarind (p≤0.05). The storage of sweet tamarind in a significant increase in the moisture of the sweet tamarind shell (p≤0.05) and could preserve the tamarind for at least 12 weeks without the deterioration from the fungus.

Sweet tamarind is a unique and economic plant of Phetchaboon province and it has already been geographical indication (GI) registered. One of its main problems is fungal degeneration which cannot be physically visible. This causes the consumer’s uncertainty on its quality especially sweet tamarind from small communities. This led to the study on the use of household heat to reduce fungal degeneration by steaming at 100oC for 50 60 70 and 80 minutes and drying in the hot air oven at 70oC for 3 hours. It was found that increasing the heat resulted in darkening the sweet tamarind color and heightening up its content moisture (p<0.05) statistical significance. Drying temperature at 60 70 and 80oC revealed the higher the heat the shorter the drying time and the sweet tamarind content was darker. In addition drying significantly decreased the moisture and preference score of sweet tamarind (p<0.05). The storage of sweet tamarind in mesh bag at ambient temperature revealed that the increase of the storage time resulted in a significant increase in the moisture of the sweet tamarind shell (p<0.05) and could preserve the tamarind for at least 12 weeks without the deterioration from the fungus.